Grounding device for electrical conduits



Sept 8, 1925 1,552,932

C. L. KESSLER GROUNDING DEVICE FOR ELECTRICAL CONDUITS Filed Nov. l8, 1922 INVENTOR. UHi/PLES L/(fssLs/e BY @@@W A TTORNEY Patented 5.... a, it v p "-um'rao STATES PATENT OFFICE.

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Application filed November 1a, 1922. ser al no. 901,140.

To all whom it may concern: i The 'fitting' member 11 is rigidly secured Be it known that 1, CHARLES L. Knssnnn, a 1n position to the conduit or other ipe by v citizen of the United States, residing at San the straps 2 which extend around t e con- Die 0, in the county of San Diego and State duit or pipe and a portion of the fitting of alifornia, have invented certain new and member 1. The fittin member 1 is preferuseful Im rovements in Grounding Deably made of malleab e iron in the form of vices for .ilectrical Conduits, of which the a T and consists of an outwardly extended following is a specification.

..My invention relates to ground ng devlces for electrical conduits and the ob ects of my invention are: first, to provide a device of this class which can be quickly, easily device.

rigidly secured to electrical conduits or ot ier pipes for grounding the conduits; second, to provide a device of this class which is applicable to all standard sizes of conduits and ipes, thus-reducing to a mini-. mum the stoc of various sizes necessa to supply the demand; third, to provi e a novel and absolute means .for making an electrical contact with and grounding electrical conduits; fourth, to provide a novelly constructed device of this class, and fifth to provide a device of this class which is particularly simple and economical of construction, durable, efficient, practical and which will not readily deteriorate or get out of order. a

With the.seand other objects in View as will appear hereinafter, my invention consists of certain novel features of construction, combination and arrangement of parts and portions, as will be hereinafter de-' scribed in detail, and particularly set forth in the appended claims, reference being had to the accompanying drawings and to the characters of reference thereon, which form a partof this application, in which:

Figurel is a side view of several of my devices, secured respectively to a water main and an electrical conduit and connected to each other, showing the water pipe, electrical conduit and connecting member, fragmentarily; Fig. 2 is aview taken at a right angle to that of Fig. 1, showing the devices secured to' the water pipe and conduit, and Fig. 3 is a sectional view taken through Like characters of reference refer to similar parts and ortions throughout the several views of t e drawings.

The fitting members 1, straps 2, sup ing members 3, clamp screws 4, an connecting member 5, constitute the princiortpal parts and portions of my grounding and the

'threa ed in portions, preferably in curved form to con orm substantially w th the pipe to which it is secured. The extended portions 1 of the member 1 are provided on the side adjacent the pipes with longitudinally extending lug portions 1 on either side thereof which are adapted to fit against the pipe to insure an absolute electrical contact therewith and particularly to form a ood seat for pipes of various diameters wiich may be used. The straps 2 consist of the conventional flexible perforated metallic strap as used in electrical work. The supporting member 3 consists of a flat bar portion 3 and a lug portion 3 extending outwardly therefrom and internally threaded to receive the clamp screw 4. The lug portions 3 of the supporting members 3 are of such a size as to be inserted into the perforations 2" of the straps 2, which straps are usually made in long strips and cut off to a length as desired, one end of the strap being secured over the lug portion 3", through oneof the perforations, and extended around the pipe and secured over the lug portion at the other end substantially as shown in thedrawings. With the ends of the straps 2 secured over said lug portions the clamp screws 4 are screwed down against the extended portions 1 of the fitting member, clamping the same tightly against the conduit or pipe. The fitting members 1 positioned. against the pi e or conduit as described are connected with each other by the connecting member '5, which is preferably a pipe, thus forming a continuous electrical conductor between the conduit and other pipe which is permanently grounded.

tion, the construction, combination and arrangement substantially as set forth in the ap ended claims.

t is obvious that I have rovided a grounding device which. can quickly, easily and rigidly secured to conduits, water or other pipes for rounding the conduits; that I have provi ed novel and absolute means for producing an absolute electrical 0 contact for grounding purposes; that I have provided a device of this class which is applicable to conduits and other pipes of various sizes; that I have provided a novelly constructed device of this class, and that I have provided a device of this classwhich is particularly simple and economical of construction, durable, eificient, practical and which'will not readily deteriorate or get out of order.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. In a'device of the class described, a.

\ fitting adapted to be positioned with its one side against a conductor provided with an outwardly extending hollow threaded pipe lug portion, a strap extending lengthwise around said conductor, ,the ends ;of said strap being positioned contiguous to said fittin and takeup means positively connecting t e free ends of said strap and engaging said fitting.

2. In adevice of the-"class described, a

fitting adapted to be positioned with its one side against a conductor provided with an outwardly extending hollow threaded pipe lug portion, a long strap extending lengthwise around said conductor and rovided with spaced perforations throug out its length, the ends of said strap bein positioned contiguous to said fitting, an takeup means connecting the free ends of said strap through the holes'at the ends thereof and positively engaging said fitting.

3. In a, device of the class described, a fitting ad apted to be positioned with its one side against a conductor provided with an outwardly extending hollow threaded pipe lug portion, a long strap extending lengthwise around said conductor and provided with spaced perforations throughout its length, the ends of said strap being positioned contiguous to said fitting, a supportmg member securing the free ends of said strap relatively to each other, and a clamp screw extending through member securing said ductor.

said supporting tting to said con- 4. A device of the class described, includinternal y threaded lug portion, straps rovided with spaced perforations, exten ing around the extended portions of said fittin and take-up means in connection with said perforated straps.

5. A device of the class described, including a fitting provided with an outwardly extending internally threaded lug portion and other portions extending substantially at right angles therefrom, saidextending portion being provided with spaced longitudinal lug portions on the side opposite said internally threaded lug portion, straps provided with spaced perforations, extending around the extended portions of said fittin member, supporting members, positioned contiguous to the extended portions of said fitting and extending partially through the perforations near the ends of said strap securing the same together at its en'dsand screws extending through said supporting members and engaging the. extended portions of said fitting.

6. Ina device of the class described, the combination with pipes, of fittings provided withoutwardl extending connecting lug portions and ot er portions extending therefrom, positioned in engagement with said pipes, straps extending around the extended portions of said fitting and adapted to extend around the adjacent pipe, take-up means in connection with said straps and said fitting and a connecting means connecting the fittings to each other by means of the connecting lug portions thereof.

In testimony whereof, I. have hereunto set my hand at San Diego, California, this 13th day of November, 1922.

CHARLES L. KESSLER. 

